ISS Avenger

The Avenger was a Terran dreadnought starship in service in the early 25th century. It was one of the first spacecraft from the Milky Way to reach the Andromeda Galaxy, and the first to make contact with the Imperial Remnant.

The ISS Avenger was commisioned in 2370 at the Terran shipyards in the "Badlands". It's design was based on designs "borrowed" from Starfleet by the mirror Miles O'Brien. The ship's purpose was to fight against other capital ships such as Negh'Var warships. The Avenger  was commanded by the mirror Travis Wallace, but in 2371 Vittorio Cascella and his augumented family hijacked the ship and installed a hyperdrive stolen from the Romulans. He then escaped the galaxy using the Bajoran wormhole as a hyperspace slingshot. They arrived in the Andromeda Galaxy, beyond the reach of the Klingons.

Only one other Star Dreadnought was created, the ISS Mjolnir. Its status is unknown.